A few of our impatiens plants are getting a whitish look to the leaves and a web is forming between the stems. What can I do to save them?
The webs are a sign spider mites are affecting the leaves by sucking juices from them to make them appear white. By the time you notice the webs, thousands of mites are present and the plant is sure to decline. It’s best to remove heavily infected plants to prevent further spread. Use soap sprays from your garden center, and a strong water stream to wash off light infestations.